20x+15=9x-18

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Solution for 20x+15=9x-18 equation: 



20x+15=9x-18

We move all terms to the left:

20x+15-(9x-18)=0

We get rid of parentheses

20x-9x+18+15=0

We add all the numbers together, and all the variables

11x+33=0

We move all terms containing x to the left, all other terms to the right

11x=-33

x=-33/11

x=-3

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